Currently, there is no leather case for the second generation 12.9-inch iPad Pro, nor does Apple offer any attachable protection for the back of said iPad. Even if Apple had not discontinued the silicone back cover for the 12.9-inch iPad Pro (first generation), it would not fit perfectly on the second generation, as the camera cut out and rear microphone hole would need to be different. No one outside of Apple knows, yet, if they are going to offer some sort of attachable rear protection for the 10.5-inch and second-generation 12.9-inch iPads Pro.